Apparently yes, since “Crazy” is the latest single by Vancouver garage blues duo the Pack a.d. It’s a solid entry in the “Crazy” canon, featuring a chugging fuzz rock groove straight out of “The Hardest Button to Button.” With singer Becky Black’s echoed vocals and falsetto leaps, it’s one of the group’s more melodic tunes. It starts out relatively tame but gets, uh, crazier as it goes on, with a sprinkling of cowbell and a whole lot of yelling.